Joan Kennedy's alcoholism has spiraled so out of control that she has consumed ``massive amounts'' of mouthwash, prompting a judge to halt her from selling her Cape Cod estate and to put her under strict court supervision, the Herald has learned. Under an 11th-hour deal struck in Barnstable Probate & Family Court on Friday, Kennedy's $6 million Hyannisport home has been taken off the market. In addition, the court dissolved a trust established by her second cousin, Webster E. Janssen, who had put the house up for sale without the knowledge of her three children. The house, along with Kennedy's...